Finding the Third Proportional to 8,538,741 and 13,207,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,538,741 : 13,207,123.50 = 13,207,123.50 : x
2. Step 2: Convert to fraction form
   8,538,741/13,207,123.50 = 13,207,123.50/x
3. Step 3: Cross multiply
   8,538,741x = 13,207,123.50 × 13,207,123.50
4. Step 4: Simplify right side
   8,538,741x = 174,428,111,144,252.25
5. Step 5: Solve for x
   x = 174,428,111,144,252.25/8,538,741
6. Step 6: Final answer
   x = 20,427,848.92